/*****************************************************************************
 *   Copyright 2005 Tim A Wang
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 *
 ****************************************************************************/
package com.jb.framework;

import com.jb.framework.util.BeanUtil;
import com.jb.util.ClassUtil;
import com.jb.web.bean.BaseComponent;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;


/**
 * Component containter for all jb components.
 *
 * @author Anping Wang
 * @version 1.0
 */
public abstract class Container {
    protected static Log log = LogFactory.getLog(Container.class.getName());

    /**
     * Creates a new Container object.
     */
    public Container() {
    }

    public Object create(PersistentContext context, String objName, Class objClass)
        throws ComponentCreationException {
        if (log.isDebugEnabled()) {
            log.debug("Create an instance of " + objClass);
        }

        Object obj = ClassUtil.createInstance(objClass);

        if (obj instanceof BaseComponent) {
            BaseComponent hi = (BaseComponent) obj;
            hi.setId(objName);
            hi.postCreate(context);
        }

        return obj;
    }

    public synchronized Object find(PersistentContext context, String objectName, Class type) {
        return context.getPersistentManager().findById(type, objectName);
    }
}
